Mii

Miis are humanoid people that are made to resemble the looks of Real Life people, creatures, things etc. They can also be made to resemble fictional stuff. Throughout the Longplays, Miis make appearances on Wii, 3DS, and Wii U Longplays. The two Miis seen on the right are the default appearance when you select a particular gender. They can be edited to change their appearance and stuff. In the Longplays they either serve no purpose other than cameos or being a bystander or they help out the heroes.